1)   TAPIEx ActiveX Control 3.2
Telephony development Control, Extensition of Microsoft TAPI2.0,support multi-lines, help you build you IVR,CTI system. Features:TTS, SR, Conference,Transfer, Caller ID, Digital Record/ Playback, Detect DTMF, DTMF and so on.
CTI, IVR, TTY, TDD, Baudot, Visual Basic, TAPI, TAPI2, TAPI Component, Telephone control,

 2)   MasterChart 2.7
Easy to use .NET charting controls for ASP.NET and Windows Forms applications. The package includes Graph, Line, Area, Bar and Pie Chart components. Each of them can be fully customized via the hundreds properties and methods. Royalty free.
pie, line, area, bar, chart, charting, graph, graphics, business, visualization,